# SLIP OR FALL OF PERSON
> MSHA accident `220122780029` · 06/25/2012 · Continental Cement Company LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Warehouseman, Bagger, Palletizer/Stacker, Store keeper, Packager, Fabricator, Cleaning plant operator
- **Activity:** Climb scaffolds, Ladders
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 2.27 years
## Operator
- **Controller:** Summit Materials LLC
- **Operator:** Continental Cement Company LLC
- **Mine:** [2300217](https://api.ai-analytics.org/mine/2300217)
## Narrative

Employee was descending a fixed ladder, and misjudged the number of rungs to the ground. He stepped down, thinking it would be to the ground, when there was another rung to the ground. His right knee twisted as his left foot went farther than expected. This did not become reportable until 09/27/2012.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*